APAR status
Closed as program error.
Error description
If a stylesheet function in an XSLT stylesheet or a user- defined function in an XQuery query calls itself recursively, the processor sometimes reports a prepare-time error that indicates that the type of the recursive function call is not of the type expected in the context in which it was used.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All IBM WebSphere Application Server Feature* * Pack for XML users * **************************************************************** * PROBLEM DESCRIPTION: A recursive function reference in an * * XSLT stylesheet or XQuery query * * expression sometimes results in a * * static error indicating that the type * * of the recursive function call is not * * of the expected type. * **************************************************************** * RECOMMENDATION: Install a fix pack that contains this APAR. * **************************************************************** As the processor analyzes an XSLT stylesheet or XQuery query expression, it tries to determine the type of value that each function defined by the stylesheet or query will return. In the case of a recursive reference to a function, the processor temporarily assumes the function would return a value with the Sequence Type xs:anyType. However, a value of that type would not be permitted in certain operations, and so, if the recursive function reference appears in such an operation, such as a boolean expression, the processor will report an error indicating that the operand is not of the expected type.
Problem conclusion
The problem was resolved by having the processor assume a more general Sequence Type of item()* for recursive references to functions. All values have a type that is a subtype of item()*, so static analysis of the result of a function reference will always indicate that the result of the recursive function can be used in the context in which it appears, including expressions like boolean expressions. The fix for this APAR is currently targeted for inclusion in fix pack 1.0.0.9. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PM32675
Reported component name
XML FEATUREPACK
Reported component ID
5724J0856
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-02-14
Closed date
2011-04-15
Last modified date
2011-04-15
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
XML FEATUREPACK
Fixed component ID
5724J0856
Applicable component levels
R700 PSY
UP
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Document Information
Modified date:
09 February 2022